- Secret Boss battles
Successfully complete the indicated task in Arcade mode to fight the corresponding Boss after defeating Seth. Notice: Use the normal three round setting.

Gouken	Do not lose any rounds, get a Perfect Victory, get ten First Attacks, and have five Super or Ultra combo finishes.
Evil Ryu	Do not lose any rounds and get a Perfect Victory, then defeat Seth with a Super or Ultra combo.
Akuma	Do not lose any rounds and get a Perfect Victory.
Oni	Do not lose any rounds, get a Perfect Victory, get ten First Attacks, have five Super or Ultra combo finishes, then defeat Seth with a Super or Ultra combo.

- Achievements
Do the following things to obtain the corresponding Gamerscore points:

10 Points
Prep Time	You need study materials to make your battle plan. Follow one player in the Leaderboards.
Overwhelming Power	If you seek power, clear Arcade Mode on Medium or higher without using a continue with Evil Ryu.
Transcendent	Ascend beyond oneself by clearing Arcade Mode on Medium or higher without using a continue with Oni.
Up to Snuff	Clear Arcade Mode on Medium or higher without using a continue with Yang. It's simple!
Just Enough!	Dude, just clear Arcade Mode on Medium or higher without using a continue with Yun! Piece of cake!
New Threads	Use a new Title and Icon, and fight in one Xbox LIVE match. Right on!
50 Points
Birth of the Oni	To surpass the power of Oni, you must defeat him in Arcade Mode on the hardest setting.
The Awakening	As if you could ever defeat Evil Ryu in Arcade Mode on the hardest difficulty. See for yourself!

- Fight character's second rival
While playing as C. Viper, Cammy, Chun-li, Guile, Ryu, or Seth, keep pushed all kick buttons immediately when the 'Now! Fight Your Rival!' message appears.